尝试获取鼠标点击坐标时出错

Question

我尝试运行此主题中的代码（第一个答案）：getting mouseclick coordinates with Xlib并且它给了我一些错误。

输出：

$ ./a.out
X Error of failed request:  BadAccess (attempt to access private resource denied)
  Major opcode of failed request:  2 (X_ChangeWindowAttributes)
  Serial number of failed request:  8
  Current serial number in output stream:  8

Answer 1

应该使用：gcc c.cc -lX11
并将一个字符串更改为：XSelectInput(display, root, ButtonReleaseMask);